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Old 04-27-2015, 05:44 AM
impreza276 impreza276 is offline
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Just bought a 7-Series Bimmer

Here is a picture of it:

Seriously, if you have runflats, don't walk - RUN to your nearest tire shop and get ride of them! Your child's school fees due? They can wait. HVAC broken down? Tell you significant other to sweat it out. Take that money and switch out the RFTs ASAP!

The change is ridiculous and astounding. It feels like driving a different car - I knew it would make a change but not to this extent. The improvement in ride is amazing - much more like the 428i loaner I had the other day. Tramlining has been banished to the depths of Mordor.

While my car was at the dealer getting some work done a month ago, I asked them to check what was causing a loud whine from the drivetrain. The car sounded like it was chewing on sand and had always felt rough mechanically. It sounded like there was a worn wheel bearing on its last legs. The tech came back with the diagnosis that the tires were causing the noise. He was so right - what I feared were 99 problems are now all gone. The car drives silkily smooth and I can now hear what was drowned in the cacophony of other noises - the creamy inline six.

The gamble on the Goodyear Eagle Sports paid off. I listed the issues that annoyed me most about car and looked for tires that addressed them. Comfort was the big one and road noise was the other. I figured out that for daily driving their performance would be more than good enough. For those reasons I chose them over the Michelins and F1s. So far they have performed beyond expectations. An added plus is that the bead on the outer side of the tire is heavily indented. I can confirm from an unintentional test that it is great insurance against curbing rims.

In summary the recommendations to switch to non-RFTs undersell how significant the improvement is. Just Do It!
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Last edited by impreza276; 04-27-2015 at 07:25 AM.
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Old 04-27-2015, 08:01 AM
impreza276 impreza276 is offline
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To add to that, the car's handling feels so much more sure footed and confident now that the skittish nature of the RFTs is gone. I can drive it a lot faster.
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Old 04-27-2015, 08:09 AM
Twixboy Twixboy is offline
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Quote:
Originally Posted by impreza276 View Post
To add to that, the car's handling feels so much more sure footed and confident now that the skittish nature of the RFTs is gone. I can drive it a lot faster.
I think that may have more to do with the fact that you have fresh rubber. Any tire will lose performance once it reaches 50% treadlife. New RFTs would've provided a significant improvement over your old ones too. I'm going the same route when it's time to replace my RFTs though.
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Old 04-27-2015, 08:15 AM
impreza276 impreza276 is offline
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The improvement is not because the tires grip better. It is because the car no longer feels like a wild bucking bull that I'm constantly fighting to tame.
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Last edited by impreza276; 04-27-2015 at 08:16 AM.
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Old 04-27-2015, 10:07 AM
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dc_wright dc_wright is offline
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A lot of race tires have a very stiff sidewall and along with the really sticky compound they react almost instantly. The ride is harsh and they try to follow every little seam in the pavement, but that's acceptable for what they bring in other areas. Street run flats have the very stiff sidewalls and all of the other negative traits, but don't come with compounds that make up for them.
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Old 04-27-2015, 10:23 AM
impreza276 impreza276 is offline
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dc_wright, yes indeed. That is one of the reasons I chose the Goodyear Eagle Sports over the F1's or Michelin Pilot Sport A/S 3. The Eagle Sports have softer sidewalls than the other two. With 18s the softer sidewalls are great comfort trade-off with not a huge penalty in handling - At least for my type of driving.
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